Vehicle-wheel tire.



. J. A. BOYAJEAN. VEHICLE WHEEL TIRE.

APPLIOATION FILED AUG. 18, 1908 942,364. Patented Dec. 7, 1909.

l/VI/ENTQR John .141 Bayag'ean.

. I scan A. .noYAJEAN, or NEW YORK, NY.

-: VEHICLE-WHEEL TIRE fipecification of Iiettershatent. ;I 7,

Application filed August 1a, 1908. Serialll'o. 449,145.

T 0 all whom it may concern:

Be it known that 1, JOHN A. BOYAJEAN, a citizen of the United States, residing at 118 West One Hundred and Eighteenth street, New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Vehicle-Wheel Tires, of which the following is a specification.

My invention relates to improvements in resilient tires and particularly composite metal and rubber structures.

Spring tires have been heretofore made but they are generally expensive and too unyielding if strong enough to withstand rough usage. I f v It is my object to produce a lightconstruction having a high degree of resiliency and yet strong and durable and relatively inexpensive.

Broadly considered it consists, of a plurality of spring rims spaced apart by layers of rubber pads mounted by a solid rubber tread, the pads of the different layers being relatively staggered so that each rim is in efi'ect supported only at the ends of the pads of the next inner layer of pads.

In the accompanying single sheet of drawings, Figure 1, is a side elevation of a wheel with a tire of my invention part being broken away to show diagrammatically the relative positions of the pads. Fig. 2, is a radial section of the tire on the line X-X. Fig. '3, is a similar sectional View on the line Y-Y. Fig. 4, is a detail view of a fragment of one of the spring rims. Fig. 5, is a sectional view of the same. Fig. 6, is a section of a pad and fragment of its supporting rim. Fig. 7 is a side view of a fragment of the tire.

The felly 1, of the wheel of any suit able construction and carries the first rim 2. The other rims such as 3, 4, 5, 6, 7 and 8 are supported by layers of yielding pads for instance of rubber such as 10 and 11. The pads of each layer are spaced apart from each other circumferentially as shown in Fig. 1 and the pads of alternate layers are arranged opposite the spaces of the adjacent or similar substance and surlength to the spaces of t layers so that a very resilient efi'ect is produced. The tread 12 is preferably of rubber and may be reinforced by wires or rods such as 13.

The :pads are held in place by the special construction of the rims. Each rim has a central channel 14 to receive a corresponding portion of the pads and a. series of bosses such as 15 to project into the pads.

'Both edges of each rim are bent up to form locking flanges such as 16 and 17. The channel, bosses and flan es prevent side movement of the pads while the bosses prevent circumferential movement. The tread is held in place in a manner similar to the pads. I prefer also to use side plates such :"-i- 18 and 19 to prevent the entrance of ioreign matter between the rims and also to late rally reinforce the rims. The platesare rem-Jed in place by bolts such as 20 and 21 so hat the plates may be removed at any fume.

1 this construction a greater resiliency is provided than with continuous rubber layers and the pressure is so distributed by retsonof the staggered arrangement of the pads that the tire is nevertheless stiff enough to withstand rough usage.

ft J -nat I claim is: 1. A vehicle wheel tire comprising a plurality of spring rims of the width of the tire and layers of yielding pads between adjacent rims and seated therein, the pads in each layer being spaced apart and the pads of one layer being opposite and equal in e adj acent' layer. 2. A vehicle wheel tire comprising a (plurality of spring rims andlayers of yiel ing ads between adjacent rims, the pads in each ayerbeing' spaced apart and thepads of one layer being opposite the spaces of theadjacent layer each rim havinga. channel and bosses for holding its pads in place.

3. A vehicle 'wheel tire comprising a plurality of spring rims, and layers of yielding pads spaced apart between the rims, each rim having a pro ecting channeled portion and side flan es locking the pads in place.

4.; A vehicle wheel tire comprising a plurality of spring rims and layers of yielding side flanges locking the'pads in p1ace ahd a yielding tread surrou'ndmg the outer rim.

JOHN Ar BOYAJEAN.

"pads-spaced apartb'efiween the rims, each rim havihg a channel, projecting bossesand side flanges locking the-pads. in place;

"15. A vehicle wheel tire cbmprisinga plurality of spring rims and layers of yielding Witnesses: pads spaced a apt between the rims, each E. BRADFORD, 'rim havinga c annel," projecting bosses and I I R0131. S. ALLYN. 

